Shoe shank grooving machine



M, 194. A. RAYON SHOE SHANK GROOVING' MACHINE I Filed Jan. 23, 194.6 2 Sheets-Sheet l Sept. 14, 1948. A. RAYON 2,449,321

SHOE smmx GROOVING MACHINE Filed Jan. "23, 1946 2 sheets-sheet 2 Andrew R y 24m and Patented Sept. 14, 1948 -UNITED STATES I PATENT OFFICE] snor. SHANK GROOVINGMACHINE Andrew Rayon, Sulphur, La. H

Application J anuary 23, 1946, Serial No. 642,824

2 Claims. (01. 12- 17) The present invention relates to new and useful improvements in shoe repair devices fo half-soling shoes. a

The objects of the present invention are:

First to provide a shoe shank grooving machine that will provide a means to efliciently splice the sole of the shoe in the process of halfsoling shoes; second to provide in a shoe machine a means to splice a half-sole to a shoe that will stay secured as permanently as the original sole; third to incorporate in a half-soling machine a means to quickly and easily secure the half-sole at the point known as the shank of the shoe; fourth to provide in a shoe shank grooving machine a means to facilitate the skiving of the old sole at the shank where the splice is made; fifth to provide in a shoe repairing machine efiicient and economical means to secure half-soles to shoes when the original soles are worn and need replacement; and sixth to provide a novelly constructed and operated shoe shank grooving machine.

A further object of the invention is to provide a machine of this character of simple and practical construction, which is efficient and re liable in use, relatively inexpensive to manufacture and otherwise well adapted for the purposes for which the same is intended.

With these and other objects in view, as will appearhereinafter, my invention consists of certain novel features of construction, combination and arrangement of parts and portions as will be hereinafter described in detail and particularly set forth in the specification forming part hereof.

Figure 1 is a side elevational view of the grooving machine.

Figure 2 is a top plan view.

Figure 3 is a perspective view of the gauge.

Figure 4 is a perspective view of the shaft extension.

Figure 5 is a similar view showing the outer end of the shaft.

Figure 6 is a transverse sectional view taken on a line 66 of Figure l.

Figure 7 is a front elevational view.

Figures 8 and 9 are transverse sectional views taken respectively on the lines 8-8 and 9-9 of Figure 1.

Figure 10 is a transverse sectional view of the base taken on a line I 0I0 of Figure 1.

Figure 11 is a fragmentary sectional view of the cutter taken on a line I ll l of Figure '7.

Figure 12 is a fragmentary side elevational view of a shoe showing the groove formed in the shank thereof.

Figure 13 isa bottom plan view of the shoe. h

, Figureil iis an enlarged fragmentary side elevational view showing the skiving of the front' edge of the groove, and

Figure 15 is a fragmentary side elevational view showing the skiving at the rear end of' a halfsole to be applied to the shoe.

In the drawings similar reference characters will be used to designate corresponding parts throughout the several views.

The shoe shank grooving machine consists of an electric motor 3 preferably a one-fourth horsepower motor, mounted on a base 4. To the motor shaft 5 is attached an extension shaft 6 which is secured at its rear end to the motor shaft 5 by means of set screws 1. The front end of the extension shaft '6 is squared as shown at 611.

A cutter or grooving wheel 8 is secured to the squared end of the extension shaft 6 by means of a washer '9 and a screw l0, said cutter wheel having a square-shaped arbor which fits over the squared end So. of the shaft extension '6.

An adjustable gauge ll includes a horizontal base Ila having a slot Ilb formed therein for adjustably securing the gauge on the base 4 by means of a bolt and wing nut He. The upper end of the gauge is curved behind the cutter 8 and is positioned slightly below and inwardly of the periphery of the cutter as will be apparent from an inspection of Figure 8 of the drawings whereby to adjust the depth of a transverse groove l2 to be cut in the shank [3 of a shoe l4 when held against the cutter.

In the operation of the device the shoe to be grooved, after the worn sole is removed is man.- ually held against the cutter wheel 8 and as it is pressed against the cutter the groove is cut in the shank, the gauge ll regulating the depth of the cut.

After the groove l2 has been cut in the shank of the shoe the shoemaker takes his knife and .skives the front edge of the groove as shown at l5 in Figure 14 of the drawing leaving the leather formed with a shoulder on the rear edge of the groove against which the rear edge of the halfsole l6 abuts. The shank of the sole I6 is also skived as shown at I! corresponding to the skived portion I5 and the skived portion I! of the sole is then placed against the skived portion I5 and glued or nailed down. This provides a thicker portion at the nailing point to hold the sole.

The conventional method heretofore used was simply skiving the shank end of the new sole to be put on to a feather edge and nailing directly to 3 the old shank. By such method the splice soon curls up and loosens from the nails and soon the entire half-sole becomes pulled away from the shoe.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A ,more detailed description is accordingly deemedunnecessary.

It is to be understood, however, that even though there is herein shown and described a referred embodiment of the invention the same i susceptible to certain changes fully compreended by the spirit of the invention as herein escribed and the scope of the appended claims.

WhatIclaim is:

1. A shoe repair machine comprising a motor driven disc type cutter, a supporting base for the motor of the cutter, said cutter being adaptedfor cutting a transverse groove in a shoe shank held against the cutter, and a gauge alongside said cutter curving concentrically thereof and in an are of relatively smaller radius than that of said cutter for gaging the depth of the groove to be cut.

2. A shoe repair machine comprising a motor driven cutter, a supporting base for the motor of the cutter, said cutter being adapted for cutting a transverse groove in a, hoe shank held against the cutter, an upstanding gauge rising from the base ,behind the cutter and curved concentrically to the cutter, and means connecting the gauge to the base for adjustment at one side of the cutter.

ANDREW RAYON.

REFERENCES CITED UNITED STATES PATENTS vMonfils .Apr, '1', 19.41 

